Cv2 resize image keep aspect ratio

Cv2 resize image keep aspect ratio. 3, cv::resize produces empty image. Downscaled image to 100x100 Oct 8, 2022 · The aspect ratio of an image is the ratio of its width to its height, and is expressed with two numbers separated by a colon, such as 16:9, sixteen-to-nine. We hope you find this article helpful in understanding how to resize an image in Feb 17, 2015 · Is there a way of resizing images of any shape or size to say [500x500] but have the image's aspect ratio be maintained, levaing the empty space be filled with white/black filler? So say the image is [2000x1000] , after getting resized to [500x500] making the actual image itself would be [500x250] , with 125 either side being white/black filler. , we will reduce its height to 50% of its original and width to 50% of its original. ndarray format with your desired height and width without changing aspect ratio and just apply padding. import cv2 # Load the image image = cv2. 0. May 9, 2016 · Here is a version of clipped_zoom using cv2. imread('image. I am trying to make a window full screen keeping its aspect ratio by the following code: cvNamedWindow(win_title, CV_WINDOW_NORMAL); cvSetWindowProperty(win_title, CV_WND_PROP_FULLSCREEN, CV_WINDOW_FULLSCREEN); cvSetWindowProperty(win_title, CV_WND_PROP_ASPECTRATIO, CV_WINDOW_KEEPRATIO); but it does not keep the aspect ratio when it comes to full screen. resize() while preserving the aspect ratio. Image Resizer. Syntax to resize image in OpenCV. Apr 10, 2017 · I am using Python 2. ndarray format and outputs an image also in numpy. Feb 6, 2021 · OpenCV loads the image in its original size if you just use cv2. Jun 16, 2015 · You can use the python library imutils. resize(cv2_img, (NEW_WIDTH, NEW_HEIGHT))Resize and preserve May 24, 2018 · I want to resize images but keep the aspect ratio with them (and also the white background). No software to install and easy to use. Thanks for the code, pretty cool. In this section, we’ll use the Pillow resize method to resize an image. waitKey(0) # Display the image infinitely Jul 9, 2020 · I am resizing my image to a particular size (512,512) . open to resize and read an image using PIL and maintain its aspect ratio. And then resize the images with opencv as follows or as you have done with PIL. def cv2_clipped_zoom(img, zoom_factor=0): """ Center zoom in/out of the given image and returning an enlarged/shrinked view of the image without changing dimensions ----- Args: img : ndarray Image array zoom_factor : float amount of zoom as a ratio [0 to Inf). imshow("Resized", res) Jun 3, 2024 · It explains the basics of this image size converter, what is aspect ratio, and, finally, the practical uses of this image ratio calculator and its aspect ratio formula. Aspect ratio. Mat::resize() hangs in 64bit. Jun 15, 2023 · Hi jdhao. resize(cv2_img, (NEW_WIDTH, NEW_HEIGHT)) Full Apr 8, 2022 · The Python Pillow library provides two ways in which to resize an image: resize() and thumbnail(). 2 Oct 4, 2022 · How to Resize Images in a Fixed Aspect Ratio with Python's PIL Library. VideoCapture('myvid2. Downscale with cv2. 1. Original Ratio: Maintain the original image aspect ratio. resize((NEW_WIDTH, NEW_HEIGHT)) cv2_img_resized = cv2. Resize image, maintain aspect ratio. WINDOW_NORMAL) cv2. for image in images: res_imag Jul 16, 2022 · I faced a similar problem to you and came up with the following solution using Moviepy. The syntax of the cv2. factors up_x = 1. 2, it should be a variable i can control from my code and i want the OpenCV Python – Resize image Resizing an image means changing the dimensions of it, be it width alone, height alone or changing both of them. namedWindow("Resized", cv2. Dec 7, 2013 · My question is simply how do I tell mogrify and/or convert to not keep the aspect ratio when resizing an image? I need the image to be an exact power of 2 for both width and height and the images do not come in a 1:1 ratio which means one side has to stretch. Also, the aspect ratio of the original image could be preserved in the resized image. To retain the image’s aspect ratio when resizing, we need to get a new dimension that is equivalent to the aspect ratio of the original dimensions. You can figure out the aspect ratio by doing width divided by height. Resize. 5) and this will resize the image to have 100 cols (width) and 50 rows (height): Feb 12, 2024 · Cropping images with a specific aspect ratio. Now, we will resize the image while maintaining the aspect ratio of the input image. resize Mar 22, 2014 · That will keep the aspect ratio for your image. So, to compute the aspect ratio, we first have to find the bounding rectangle of the object. thumbnail with sys. OpenCV + OpenGL context resizing Dec 9, 2019 · You can try using imutils. resize () function to upscale, downscale, or resize to a desired size (considering or not considering the aspect ratio). width by height), if you want to maintain the same in the resized image too. Feb 6, 2023 · In this part, I will show you the simple way to resize images (without keeping the aspect ratio) in OpenCV (cv2) and Pillow (PIL). I’d like to get a 1000 x 1000 picture in Python from any input picture so that the input doesn’t lose it’s aspect ratio. How can I resize the image to 1/3 of people_popup_tab width without losing aspect ratio? My current code: Aug 22, 2023 · I want to resize png picture 476x402 to 439x371, and I used resize method of PIL(image) or opencv, however, it will loss some sharp. jpg') # Get the original dimensions (h, w) = image. jpg') res = cv2. 0 and Python2. See full list on pyimagesearch. Below are the two method for doing it The calculated aspect ratio is used to reserve space for the image until it is loaded, and as long as the calculated aspect ratio is equal to the actual aspect ratio of the image, page “jump” is prevented after loading the image. To resize an image in Python, you can use cv2. imread("earth. If you want to resize an image while keeping the aspect ratio, read this tutorial. I have a training set of 2050 images and I want to resize Oct 7, 2020 · I want to resize image to a given longer edge (e. Thanks for you help To resize an image in Python, resize() function of the OpenCV library is used. Jan 20, 2014 · Figure 3: We have now resized the image to 100px wide. Maintaining Aspect Ratio: When resizing images, it’s often essential to maintain the aspect ratio to prevent distortion. By specifying the desired width or height, OpenCV automatically adjusts the other dimension to maintain the aspect ratio. Let’s breakdown the code and examine it: Line 15 and 16: We have to keep the aspect ratio of the image in mind, which is the proportional relationship of the width and the height of the image. resize(image/255. OpenCV allows us to achieve this by calculating the aspect ratio of the original image and then resizing it accordingly. Resizing, by default, does only change the width and height of the image. namedWindow('image', cv2. resize function so that it will maintain the image aspect ratio when you resize, however it will also enlarge an image if the image you provide is smaller than the size you provide. Another transformation available in ImageKit is the aspect ratio transformation. To fix that, only call it if the image is larger. imdecode(buf,flags) Parameters: buf - It is the image data received in bytesflags - It specifies the way in which image should be read. import glob import cv2 import numpy as np IMG_DIR='home/xx/imgs' def read_images(directory): for img in glob. Oct 20, 2012 · Resize using cv2: How to resize an image with OpenCV2. I wrote this code for playing video in full screen mode but the problem is it causes my video to stretch. You can adjust based on desired width or height to upscale or downscale. e. Changing the aspect ratio of the image can give us a shrank or an enlarged image. Resize an Image with cv2. resize (opencv convenience functions). resize(image, (0,0), fx=0. image_resize function will be used to resize the image, keeping the aspect ratio. resize(src, dsize, dst, fx, fy, interpolation) Mar 8, 2021 · In for loop, we are reading images one by one using cv2. Jan 3, 2023 · Python cv2. resize(im, (960, 540)) # Resize image cv2. Resize Image using cv2. – Jun 28, 2023 · To change the image size without stretching it, you should keep the aspect ratio — the proportion between the width and height of the image — the same. WINDOW_KEEPRATIO), I can create a resizable window but fail to keep aspect ratio. Not preserving the aspect ratio leads to distorted images. How to change aspect ratio? get display aspect ratio of video? [closed] Histogram size. But I don't know what API to use. Based on the requirement, the aspect ratio of an image can be preserved. To resize an image, OpenCV provides cv2. Example of usage: Feb 7, 2023 · This tutorial will show you how to resize an image while preserving the aspect ratio in OpenCV (cv2) and Pillow (PIL), also, how to scale it by a scale ratio and resize it by a max height and width. resize(img, dsize=(54, 140), interpolation=cv2. If you don't care about the aspect ratio, you can follow the previous tutorial. How to Resize an Image with OpenCV and Python. Image. 4. This practice may work well for image classification where fine details may not be Jan 21, 2024 · Preserving the aspect ratio of an image is crucial to avoid distortion. resize() Function. I would like the displayed image to expand on all the avalaible space even if ratio is not respected. longer edge=416) while keeping the original aspect ratio. This resize function of imutils maintains the aspect ratio and provides the keyword arguments width and height so the image can be resized to the intended width/height while (1) maintaining aspect ratio and (2) ensuring the dimensions of the image do not have Jan 1, 2022 · Hi and happy new year to all, I have a small question regarding the imshow() method. Can someone point me to some cod Resize the input image to the given size. This is generally used for loading the image efficiently from the internet. resize is used to resize the images. resize(img, dsize=(500,500), interpolation=cv2. First line: Determine a fixed number for creating the ratio. OpenCV provides a convenient method to resize images while preserving their aspect ratio. Custom Ratio: Specify the horizontal and vertical ratio. 2 times specifying a single scale factor down = 0. resize(src, dsize, fx, fy, interpolation) Where: src is the source of the Apr 26, 2024 · Resizing Images Using cv2. After calculating the new width and height, we resized the image using the resize method and saved the new image using the same method according to the new width. What is aspect ratio? In any digital medium, be it TV, photos, images, gifs, or even cinema, the aspect ratio is the precise proportion of height to width . 0 , (250 , 250)) yield resized_img resized_imgs = np Apr 8, 2022 · The Python Pillow library provides two ways in which to resize an image: resize() and thumbnail(). Reducing the size of an image will require resampling of the pixels. import cv2 cv2. set size of an window. imread(). To resize images with OpenCV, use the cv2. I have written this code. I want to keep its aspect ratio and Feb 2, 2015 · However, special care needs to be taken to ensure that the aspect ratio is maintained. I find albumentations. It Feb 27, 2017 · I have a folder with images of different sizes. Let’s calculate the aspect ratio of the original image and use it to resize an image so that it doesn’t appear squished and distorted: Apr 5, 2018 · I have many images of different sizes in my directory, however i want to resize them all by a certain ratio, let's say 0. shape[:2] sh, sw = size # interpolation method if h > sh or w > sw: # shrinking image interp = cv2. 8 up_y = 1. Currently the most accurate way I've found of calculating the optimum scaling factor (best width and height for target p Jun 6, 2017 · I apologize for my ambiguous explanation. May 22, 2023 · It provides a resize() function that can be used to resize an image while maintaining its aspect ratio. In the above example, we’ve resized the original image to 500x500 pixels. Some also simply don't show up now. Square: Square or icon image (1:1 ratio). 618). Also the code is suitable for 3 channels (colored) images as well. It May 8, 2018 · My video aspect ratio is 16:9 and my monitor is 16:10. It is important to keep in mind the original aspect ratio of the image (i. jpg') # Set the new width and height new_width = 500 new_height = int(img. I'm working with Python and OpenCV. resize. To maintain that ratio, run the following command to resize the image to 75% of its width and height: Nov 11, 2023 · Learn how to resize images in Python while maintaining their aspect ratio for a visually appealing result. I uncommented the part to draw a "black" box around the image. imread("image. INTER_AREA else: # stretching image interp = cv2. mp4') success,image = vidcap. In this OpenCV tutorial, we learn the syntax of cv2. For example, this will resize both axes by half: small = cv2. With cv2. INTER_CUBIC) Here img is thus a numpy array containing the original image, whereas res is a numpy array containing the resized image. I have also updated the question and provided link from where I am following the tutorial. 3. Our free tool makes image aspect ratio adjustments effortless. For example, I want my image like this to become like this Mar 6, 2019 · You can run through all the images inside the directory using glob. Resizing with Custom Dimensions Feb 6, 2018 · Here's a sample snippet to resize tensor image keeping aspext ratio: def resize_image_keep_aspect(image, lo_dim=LO_DIM): # Take width/height initial_width = tf. resize(mask, (size, size), interpolation) The code resizes an image making it square and keeping aspect ration at the same time. imshow without first declaring it using cv2. augmentations. Python Program Aug 9, 2024 · To maintain the aspect ratio, you need to calculate the new dimensions based on the desired size while preserving the original aspect ratio. copyMakeBorder, this creates an image with the target aspect ratio with black bars "filling in" the difference between the aspect ratios. 3:2: Ratio from film and photography. resize((NEW_WIDTH, NEW_HEIGHT)) # OpenCV cv2_img_resized = cv2. OpenCV has this thing called cv2. How can I do that ? Following is my code. Then, we extract the original width and height of the image using the shape attribute. INTER_CUBIC) cv2. Get only a certain area out of an incoming image. 4 # Scaling Down the image 0. cv2. resize or if you wanted to maintain aspect ratio, you can use imutils. imread('your_image. resize() function. Apr 12, 2020 · For future reference: Fixed the first part of the question with this function: import cv2 import numpy as np def resizeAndPad(img, size, padColor=0): h, w = img. to_float(min_) / tf Jul 28, 2024 · Resize the image of, say, a size of 800×600 pixels, to 300×300 pixels: cv2. resize(img, (300,300)) As in the previous example on resizing images with Pillow’s resize() method, this procedure changes the aspect ratio, causing distortions. Here's a quick example: Input image with shape 250x250. Nov 11, 2023 · Learn how to crop images using Python's OpenCV library with coordinate examples. Sep 12, 2021 · 5. The aspect ratio refers to the ratio of the width and height of a particular image. 25 or 0. The aspect ratio can be preserved or not, based on the requirement. My goal is to create a resizable window for displaying image like this, but takes keeping aspect ratio into account too. An important aspect is the interpolation parameter: there are several ways how to resize Feb 28, 2024 · Method 2: Resizing While Maintaining Aspect Ratio. namedWindow("output", cv2. uint8) #Getting the centering position ax,ay = (s Feb 3, 2016 · Although I was expecting an automatic solution (fitting to the screen automatically), resizing solves the problem as well. png") #Getting the bigger side of the image s = max(img. shape[0:2]) #Creating a dark square with NUMPY f = np. Resize without preserving the aspect ratio: pil_img_resized = pil_img. resize(image, dsize=(50, 100)) Also, multiple images can be resized through for syntax. resize() In the following example, we are going to see how we can resize the above image using cv2. imdecode() function is used to read image data from a memory cache and convert it into image format. glob(directory+"/*. One of the way is resizing the image not caring about aspect ratio. 7, OpenCV. shape[0] * new The first one is for keeping height constant and the second of width new_height = int(new_width * aspect_ratio) # Resize the image resized_image = cv2. In short: Resize an image to a square but keep aspect ratio c++ opencv. How do I resize and smooth images in opencv 2. For example, to get an image at 800px width with an aspect ratio 4:3, the URL will be Jun 18, 2022 · It aids in maintaining the aspect ratio and the display quality. 2 [closed] [C++] OpenCV2. Bounding rectangle of an object can be found using cv2. resize () and how to use this function to resize a given image. Here is a code that solve your question with OPENCV module (using NUMPY module too) #Importing modules opencv + numpy import cv2 import numpy as np #Reading an image (you can use PNG or JPG) img = cv2. 4:3: Typically used for displays. . tiff or . Resize Image # Pillow pil_img_resized = pil_img. jpg") # Read image imS = cv2. Second line: Open the image. resize() to help with that. png"): image = cv2. Jan 26, 2024 · Resizing Images while maintaining its aspect ratio. Most editing tools have an option to ‘maintain aspect ratio’ when resizing, which automatically adjusts the height when you change the width, and vice versa. Choose from predefined ratios like 16:9, 4:3, or set your own. read() count = 0; print "I am in success" while success: success, import cv2 import numpy as np img = cv2. Is there a way to keep the aspect ratios of my ima imread: read an image from disk. Jan 4, 2020 · For example if the original image has this size: 2400 * 2600, you should pad the columns with 100 pixels (e. g. Pixelization. resize however aspect ratio is not preserved automatically. – Feb 2, 2014 · John Ottenlips's solution created pictures with black borders on top/bottom i think because he used . When you resize, it’s nice to keep the picture looking the same, so you don’t squish or stretch it weirdly. add 100 zero pixels to each row border) to make the image 2400*2700. Here is the code to resize an image while maintaining its aspect ratio using OpenCV in Python: python import cv2 # Load the image img = cv2. shape[:2] # Desired width new_width = 800 # Calculate the aspect ratio aspect_ratio = h / w new Apr 8, 2024 · Finally, we save the resized image using cv2. Resize() must specify width and height parameter so that all the images will be resized to exactly the same size. Feb 2, 2021 · python cv2 resize keep aspect ratio Comment . Aug 28, 2020 · Sure, I am using posenet to define 17 key points in a body. In the world of image processing and computer vision, resizing images is a fundamental task. without keeping the aspect ratio, e. Here’s an example: May 28, 2017 · If you wish to use CV2, you need to use the resize function. size (sequence or int) – Desired output size. the result of the application of OpenCV's resize function with the parameter interpolation set to cv2. I tried to use ImageDataGenerator with flow_from_directory for batch loading / data augmentation. Advantage of this method is that it will not crop the centre object (car) when it resizes the image and corrects aspect ratio, and will increase left side of image if there is no space to increase in right side (and viceversa,for height and width) to achieve What worked for me was to resize the image instead of the window (I never did manage to get window resizing to work): import cv2 img = cv2. Mar 25, 2024 · The size of an image decreases. Ask Question Asked 12 years, it resizes the image to fit the container while keeping the image's original aspect ratio. shape(image)[0] initial_height = tf. If size is a sequence like (h, w), the output size will be Mar 19, 2023 · The resize() function takes two parameters: the original image and the target size of the new image. Golden Ratio: Crop using the golden ratio (1. Sep 28, 2022 · How to compute the aspect ratio of an object in an image using OpenCV Python - The aspect ratio of an object is computed as the ratio between the width and height of the bounding rectangle of the object. Feb 1, 2024 · i like to suggest an optimization to work with any image size, the original code have a problem when the min dimension leng of the image after resize its bigger than the objective size in that dimension, only add this lines: Feb 12, 2020 · Before displaying the image, you could simply downsize the image using cv2. Upscaling with cv2. I'm going to assume your 16:9 videos are 1920w by 1080h and you don't want to resize / compress your video. To maintain the aspect ratio of the image when resizing, you need to calculate the ratio of the new dimensions to the old dimensions and use that ratio to adjust the width or height accordingly. It’s Then I would use this width and height to know how to proportionately scale the image down. namedWindow you can achieve your target of loading the image in its original size. namedWindow. I use the fullscreen property to expand the window to all the screen, but the displayed picture in this window still keep its original dimension. imwrite(). We can use cv2. import cv2 vidcap = cv2. If you see the above image then at the leftmost side is the original image and after some pre-processing, the image which we get has basically ROI has the main part. After resize, The picture becomes blurred. new("RGB", (final_size, final_size)) which creates a square new image with the final_size as dimension, even if the original picture was not a square. imread(img) resized_img = cv2. This method allows you to: Upscale and downscale an image, by providing specific dimensions; Resize an image even the aspect ratio doesn’t match the original image Dec 7, 2017 · According to Jeremy Howard, padding a big piece of the image (64x160 pixels) will have the following effect: The CNN will have to learn that the black part of the image is not relevant and does not help distinguishing between the classes (in a classification setting), as there is no correlation between the pixels in the black part and belonging to a given class. boundingRect() function. Most of the answers I found use Java and I need to use Python. Here, we are going to downscale and upscale the input image. resize() with a scaling factor, we first load the image using cv2. Now that you have read the image, let’s resize it. However, resize() requires that you put in either the destination size (in both dimensions) or the scaling (in both dimensions), so you can't just put one or the other in for 1000 and let it calculate the other for you. INTER_AREA), why don't people apply it in the classification task? Jun 13, 2012 · I have images that will be quite big in dimension and I want to shrink them down with jQuery while keeping the proportions constrained, i. Parameters: img (PIL Image or Tensor) – Image to be resized. 6 Resize using the Python Imaging Library (PIL): How do I resize an image using PIL and maintain its aspect ratio? Share Feb 2, 2024 · With Python, we used Image. INTER_CUBIC # aspect ratio of image aspect = w/h # if on Python 2, you might need to If the "letterbox" method is better than "normal resize" (i. The usual practice is to resize the input image to the given size (the image aspect ratio is no longer kept) and then crop a fixed size patch randomly from the resized image. This is achieved by calculating the ratio of a new dimension to the original dimension and then using that ratio to determine the new dimensions Nov 6, 2017 · When we are using convolutional neural networks, most of the time, we need to fix the input image size to feed it to the network. class LongestMaxSize (DualTransform): """Rescale an image so that maximum side is equal to max_size, keeping the aspect ratio of the initial image. imwrite is used to write the resized images to the output folder, i = 0 that we defined earlier is used here to rename the images. Nov 14, 2015 · First off part of me feels like this is a stupid question, sorry about that. The closest thing I have to an answer is the -extent flag, but that just extends the Dec 21, 2021 · The below code crops the image to required coordinates, then increases its size to match the aspect ratio depending if its >16/9 or <4/3. But the image still renders all wonky. maxsize if your resize limit is only on one dimension (width or height). Moviepy will keep the sound. For instance, if you want to resize an image so that its height is no more than 100px, while keeping aspect ratio, you can do something like this: Jul 12, 2019 · I'm not entirely sure what you're asking but it seems like you want to resize two images and maintain aspect ratio between the two. This method allows you to: Upscale and downscale an image, by providing specific dimensions; Resize an image even the aspect ratio doesn’t match the original image Resize the input image to the given size. In other words, I want to resize the input so that its longer dimension is 1000 pixels and “fill” the other dimension with the background color until it become 1000 x 1000 square. Also when saving the image, you should use a lossless image format such as . Resizing, by default, only changes the width and the height of the image. Quickly resize image files online at the highest image quality. Jan 10, 2022 · Resizing by changing the aspect ratio. zeros((s,s,3),np. Args: max_size (int, list of int): maximum size of the image after the transformation. The resized image can have the same ratio of width and height as the original image or a different ratio of width and height from the original image. WINDOW_NORMAL) # Create window with freedom of dimensions im = cv2. In this example, we will be looking at how that can be done. shape(image)[1] # Take the greater value, and use it for the ratio min_ = tf. If so, here's a function to resize a image and maintain aspect ratio to any width or height. It's often necessary to adjust the dimensions of an image to meet the requirements of an application or to reduce the computational load. imwrite then open it in your system's native image viewer. We will resize the image to 50% of its actual shape, i. Dec 5, 2020 · One image can be resized using opencv on python3 import cv2 res_image = cv2. Another method is to simply save the image using cv2. You can use it with either the width or the height transformation to fix the output image's aspect ratio and transformations. resize() function is: cv2. – Nov 7, 2008 · You can combine PIL's Image. 2 scaled_down = cv2 Jun 5, 2021 · Preserving the aspect ratio. resize() With the downscale operation, we will decrease the resolution of the input image. minimum(initial_width, initial_height) ratio = tf. Then you can resize the result image to 800*900 (with 1/3 scale factor) without any change in the shapes of the image. Apr 29, 2022 · You can use resize() in OpenCV to resize the image up/down to the size you need. This prevents distortion of the image. So by skipping cv2. Syntax: cv2. It didn't work right away and what I did is I changed new_size to not be multiplied by ratio as one would then have that x*ratio = desired_size which gives that new_size = desired_size. resize () function of OpenCV library cv2. It takes the original image, modifies it, and returns a new image. The only side-effect you may not want is that it will also make the image larger than the original, if you increase the size of the form enough, resulting in a fuzzy looking image. png. Crop and resize your images seamlessly. com Jun 20, 2017 · mask[y_pos:y_pos+h, x_pos:x_pos+w, :] = img[:h, :w, :] return cv2. imread. 16:9: Widescreen standard for tv and computer monitors. Then May 29, 2023 · Example 2 - Resize and Preserve Aspect Ratio. Mar 14, 2021 · I have a question regarding the pre-processing of some images using python. Jul 19, 2018 · Figure 4: Resizing an image with OpenCV and Python can be conducted with cv2. transforms. Image resizing: resize to just any size. resize() When you resize images, you’re basically changing their size. If size is a sequence like (h, w), the output size will be Oct 16, 2019 · From my point of view, this solution has the drawback (in general, maybe not in this specific case), that if showing the image is just for some visual inspection, and/but the image is actually further processed, you might lose "precision" or "information" if you shrink it just for the sole purpose of visualization. Jul 27, 2019 · Here is a function using Pillow and Opencv which takes an image in numpy. If the image is torch Tensor, it is expected to have […, H, W] shape, where … means an arbitrary number of leading dimensions. Jan 25, 2018 · Finally, divide by two (as border is added top/bottom or left/right) and call cv2. 5, fy=0. resize to resize an image while maintaining aspect ratio. the same aspect ratio. resize() To upscale an image using cv2. imshow("output", imS) # Show image cv2. It wraps the cv2. nkfnb awxp qcfgw umju onuyuz pghtdd iinw kdyzg quylf pjx